project/com.nokia.carbide.cpp.epoc.engine/src/com/nokia/carbide/internal/cpp/epoc/engine/model/TranslationUnitListener.java
/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
package com.nokia.carbide.internal.cpp.epoc.engine.model;
import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.IASTNode;
import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.ITranslationUnitListener;
import com.nokia.cpp.internal.api.utils.core.*;
/**
* Listen to unauthorized external changes to the TU
*/
class TranslationUnitListener implements ITranslationUnitListener {
private boolean changesAllowed;
public void allowChanges(boolean allowed) {
Check.checkState(allowed != changesAllowed);
changesAllowed = allowed;
}
/* (non-Javadoc)
* @see com.nokia.carbide.internal.api.cpp.epoc.engine.dom.ITranslationUnitListener#changedNode(com.nokia.carbide.internal.api.cpp.epoc.engine.dom.IASTNode)
*/
public void changedNode(IASTNode node) {
if (!changesAllowed)
throw new IllegalStateException("illegal change to translation unit outside model or view"); //$NON-NLS-1$
}
}